Triplanetary by E.E. “Doc” Smith
Pyramid Books, 1970
Also Halcyon Classics, 2010
Originally published in Amazing Stories, 1934
Price I paid: none and unknown
Eddore and Arisia fought desperately to control the Universe. The ultimate battleground was a tiny, backward planet in a remote galaxy―Earth.
And only a few Earthmen knew of the titanic struggle―and of the strange, decisive role they were to play in the war of the super-races.
Here is the beginning of “Doc” Smith’s famous Lensman series―the first of the celebrated novels that set a pattern for science fiction.